Unity检测一个点是否在物体边缘包围框内

public GameObject target = null;    
    void Update () {
        
        Vector3 pos =  GetComponent<Collider>().ClosestPoint(target.transform.position);
        if (Vector3.Distance(pos, target.transform.position) <= 0.01) {
            Debug.Log("Contains");
        }

    }